One urgent question. No birth time needed.
Prashna is the branch of Vedic astrology that does not need your birth details at all. The chart is cast for the moment the question is asked, at the place it is asked from, on the classical principle that a question arriving with real urgency arrives at a meaningful time.
It suits a narrow, live question: will this job come through, should I take this house, where is the thing I have lost, is this the right time to file the case. It is not a substitute for a birth chart reading and it will not tell you about your life as a whole. One question, one considered answer.
When this is not the right choice If you want your career, marriage and health looked at together, that is a Birth Chart Analysis. Prashna answers one question and stops.
None. That is the whole point of the method. The chart comes from the moment of asking.
One per Prashna. Each question needs its own chart, cast at its own moment — bundling them is what makes cheap online readings useless. If you have three real questions, a birth chart analysis is better value.
Anything with a yes, a no or a when: an offer, a property, a case, a missing item, a decision with a deadline. Open-ended questions about your character or your whole life do not suit it.
It depends heavily on the question being genuine and narrow. A question asked out of idle curiosity produces a poor chart. Gautam will reframe the question with you before casting if it needs it.
Not sure this is the right one? Ask first — you will get an honest answer, and no charge for asking.